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・ Litle Sokumvatnet
・ Litlekalsøy
・ Litlesotra
・ Litli-Jón
・ Litlington
・ Litlington, Cambridgeshire
・ Litlington, East Sussex
・ Litlumvatnet
・ Litlverivatnet
・ Litløy Lighthouse
・ Litløya
・ Litma
・ Litmanová
・ Litmerk
・ Litmos
Litmus
・ Litmus (band)
・ Litmus (Battlestar Galactica)
・ Litmus (disambiguation)
・ Litmus (Mozilla)
・ Litmus Green
・ Litmus milk
・ Litmus test (disambiguation)
・ Litmus test (politics)
・ LITNET
・ Lito
・ Lito & Polaco
・ Lito (Cape Verdean footballer)
・ Lito (Portuguese footballer)
・ Lito Anzures


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Litmus : ウィキペディア英語版
Litmus

Litmus is a water soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.
== History ==
Litmus was used for the first time about 1300 AD by Spanish alchemist Arnaldus de Villa Nova.〔 From the 16th century on, the blue dye was extracted from some lichens, especially in the Netherlands.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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